什么';给定mongodb查询的正确语法是什么?

什么';给定mongodb查询的正确语法是什么?,mongodb,nosql,Mongodb,Nosql,问题:编写MongoDB查询以查找位于纬度值小于-95.754168的餐厅 “餐厅”收藏的结构 { "address": { "building": "1007", "coord": [ -73.856077, 40.848447 ], "street": "Morris Park Ave", "zipcode": "10462" }, "borough": "Bronx", "cuisine": "Bakery", "grades": [ { "date": { "$date": 139380

问题:编写MongoDB查询以查找位于纬度值小于-95.754168的餐厅

“餐厅”收藏的结构

{
"address": {
"building": "1007",
"coord": [ -73.856077, 40.848447 ],
"street": "Morris Park Ave",
"zipcode": "10462"
},
"borough": "Bronx",
"cuisine": "Bakery",
"grades": [
{ "date": { "$date": 1393804800000 }, "grade": "A", "score": 2 },
{ "date": { "$date": 1378857600000 }, "grade": "A", "score": 6 },
{ "date": { "$date": 1358985600000 }, "grade": "A", "score": 10 },
{ "date": { "$date": 1322006400000 }, "grade": "A", "score": 9 },
{ "date": { "$date": 1299715200000 }, "grade": "B", "score": 14 }
],
"name": "Morris Park Bake Shop",
"restaurant_id": "30075445"
}
作者的答案是:db.restaurants.find({“address.coord”:{$lt:-95.754168})

这是正确答案吗? 如果没有,那么正确答案是什么


资源:

您可以像这样进入您的
合作关系
索引

db.restaurants.find({"address.coord.0" : {$lt: -95.754168}});
根据文件,

MongoDB使用点表示法访问数组元素和嵌入式文档的字段

例如,

请注意,索引是基于0的